Bayer systemic plant and tree treatment review

I have been using Bayer systemic products to treat my roses, citrus, trees and shrubs for years with excellent success. For example, I have all but eradicated aphid infestations on my Crape Myrtle trees (which I only treat once per year) and rose my bushes. I give the Bayer line of garden products 5 out of 5 stars.